We met some friends on the ship through the cruise critic forum who added us to their trip. It was a tuk tuk tour around the city and included a trip on the backwaters by a small motor boat. A good day out/ ...
Used a Taxi at the Port Terminal, no issues, cheap for the four of us. Pre arranged Tuk Tuk the 2nd day, taking us to the non tourist backwaters and some other sites. Good value. ...
Hired a taxi/driver for the day and also went on a small boat cruise around the city waterways. Quite interesting. Then went for a city tour with our driver and saw the sights of the city. We didn't find this the most interesting place and probably wouldn't bother going there again. ...
Easy to arrange own travel if you are just visiting Port Kochi. For a better look at the area you will need to travel further afield.
Remember local currency needs to be changed at outlet just after immigration but this can get very busy. You can pay for tuk-tuk or taxi on return if you want to change money in town to avoid the queue.
Colorful place but many people surprised by the background ...